This poster of civil rights icon MLK Jr reads: "Darkness cannot drive out darkness; only light can do that. Hate cannot drive out hate; only love can do that."
The image file can be printed full size in high resolution at 24x36" or at a smaller size if that's preferred. I usually print these posters at Office Depot or Staples on bond paper, which without laminating or mounting costs only a few dollars. Very affordable!
Contact me about designing custom posters or other artwork for your classroom at emerielukas.com - I'd love to help! You can also check out the other posters in this set by going to my TPT shop.